U.S. District Judge Lewis A. Kaplan revoked Sam Bankman-Fried’s pretrial release on August 11, 2023 and ordered the FTX founder detained pending trial. The one-page incarceration order in United States v. Bankman-Fried said the court found probable cause to believe he had committed attempted witness tampering while on release and found, by clear and convincing evidence, that no release condition or combination of conditions would assure that he would not pose a danger to others or the community.

The order changed Bankman-Fried’s status immediately: he left the Manhattan federal courtroom in U.S. Marshals’ custody. It did not decide the fraud and conspiracy charges arising from FTX’s November 2022 collapse, and it was not a finding of guilt on those charges. Bankman-Fried had pleaded not guilty.

Why the court revoked release

Kaplan’s decision followed prosecutors’ argument that Bankman-Fried had tried to influence potential witnesses on at least two occasions. Contemporaneous Associated Press and Reuters accounts reported that the judge focused on a January 2023 encrypted communication to a former FTX general counsel and Bankman-Fried’s July 2023 sharing of private writings by former Alameda Research chief executive Caroline Ellison with a newspaper reporter.

Ellison was an anticipated government witness. Prosecutors argued that providing her writings to the press was intended to discredit or intimidate her and potentially affect the jury pool. Bankman-Fried’s lawyers disputed that characterization. In an August 1 filing, they said he was attempting to defend his reputation, argued that contacts with reporters were lawful, and maintained that the government had not established probable cause or a serious risk of future intimidation.

The August 11 order resolved the detention question against the defense. It did not adjudicate the full witness-tampering allegation beyond a reasonable doubt. “Probable cause” is the threshold the court recorded for the alleged offense while on release; the separate clear-and-convincing finding addressed whether release conditions could protect the community.

An institutional turn in the FTX case

The detention mattered beyond courtroom procedure because Bankman-Fried had been the public face of a globally prominent cryptocurrency exchange before FTX entered bankruptcy. Since his December 2022 extradition from the Bahamas, he had been living at his parents’ California home under a $250 million personal-recognizance bond and increasingly restrictive rules governing devices, internet access and communications.

Revocation showed that those restrictions had reached their limit in Kaplan’s view. The court concluded that a narrower communications order would not adequately manage the risk it identified. That shifted preparation for a major digital-asset fraud trial from supervised home release to detention and sharpened practical questions about access to discovery and lawyers.

The development did not create a rule for cryptocurrency exchanges, classify any token, determine customer recoveries or resolve FTX’s bankruptcy. Its significance was institutional: the most prominent defendant from the 2022 crypto failures would await trial in custody because the judge found the integrity and safety of the witness process could not be protected through conditions of release.

What remained unresolved on August 11

Defense counsel asked Kaplan to stay the detention order while an appeal was pursued; contemporaneous reporting said the judge refused, and counsel filed a notice of appeal shortly afterward. As of August 11, the appeal, the criminal trial, any verdict and any sentence remained unresolved. The court’s signed order established detention and its stated legal findings—nothing more.

Primary sourceU.S. District Court, Southern District of New York — Incarceration Order, Document 198, August 11, 2023

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